Petaluma, California city limit sign along Highway 101 in 1957

Chicago citation style
Petaluma, California city limit sign along Highway 101 in 1957. 1957. Retrieved from the Digital Public Library of America, http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/17525. (Accessed December 13, 2018.)
APA citation style
(1957) Petaluma, California city limit sign along Highway 101 in 1957. Retrieved from the Digital Public Library of America, http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/17525
MLA citation style
Retrieved from the Digital Public Library of America <http://heritage.sonomalibrary.org/cdm/ref/collection/p15763coll2/id/17525>.
Note: These citations are programmatically generated and may be incomplete.